CN102336454A - Application of catalyzed inner electrolysis method in organosilicone waste water treatment - Google Patents
Application of catalyzed inner electrolysis method in organosilicone waste water treatment Download PDFInfo
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- CN102336454A CN102336454A CN2011100238942A CN201110023894A CN102336454A CN 102336454 A CN102336454 A CN 102336454A CN 2011100238942 A CN2011100238942 A CN 2011100238942A CN 201110023894 A CN201110023894 A CN 201110023894A CN 102336454 A CN102336454 A CN 102336454A
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Abstract
The invention relates to an application of a catalyzed inner electrolysis method in organosilicone waste water treatment, and relates to the pretreatment of organosilicon waste water. The organosilicon waste water has the characteristics of strong acidity, high salinity, high COD concentration, poor biodegradability, difficult degradation and the like. The invention aims at solving the problems of conversing the organosilicon waste water with difficult biochemical degradation to the organic waste water with easy biochemical degradation, raising the waste pH value and completely realizing the biochemical treatment of organosilicon waste water. The invention has the beneficial effects of removing a part of organic matter in organosilicon waste water, realizing damage and chain breakage of the organic substance with difficult biochemical degradation, eliminating or weakening the biological toxicity, raising the B/C ratio, changing the organosilicon waste water to industrial wastewater with easy degradation from the industrial waste water with difficult degradation, realizing complete and biochemical treatment of organosilicon waste water and providing forceful condition for achieving the discharge standard.
Description
Affiliated technical field
The invention belongs to treatment of Organic Wastewater hard to manage field, relate to a kind of method that adopts catalyzed internal electrocatalysis pre-treatment organic silicon wastewater.
Background technology
From the nineties in last century, because the increasingly extensive application of type materials such as silicone oil, Zylox and silicone resin in the organosilicon series product, global organosilicon industry is keeping the high speed development always.But organism kinds is more in the waste water that produces in the organosilicon product process; Except that methyl alcohol, have the record silane and also have superpolymer such as silicone intermediate, silicone couplet and midbody, silicone oil, silicone resin, Zylox, inorganics is main with hydrochloric acid, strong sodium oxide in the waste water.The chemical constitution of waste water is complicated, belongs to bio-refractory material (except small amount of methanol, the ethanol) mostly, and wherein BOD5/CODcr is less than 0.2, the biodegradability extreme difference.Contain many macroscopic oil slick, scum silica frost in the waste water simultaneously, waste water acidity is also extremely strong, removes the hydrolysis device and discharges a small amount of alkaline water, and other each productive units all are strongly acid wastewaters, so the pH value is low, and chloride ion content is high.
Acid strong, the characteristics such as toxicity is big, salinity is high, COD concentration high, biodegradability is poor, difficult degradation of organosilicon trade effluent; Make that processing organosilicon trade effluent difficulty is very big; On the low side to the achievement in research of organosilicon Industrial Wastewater Treatment both at home and abroad at present, there is not very successful processing case yet, the ubiquity treatment effect is undesirable; And the high situation of processing cost, organic silicon wastewater is the difficult problem of the whole organosilicon industry of puzzlement up to now always.
Summary of the invention
Problem to be solved by this invention is to change into the organic silicon wastewater of bio-refractory to be prone to biochemical degradation organic waste water, improves useless pH value, makes organic silicon wastewater can realize biochemical treatment fully.
The technological technical scheme that the present invention adopted is: adopt catalyzed internal electrocatalysis method pre-treatment organic silicon wastewater.It is based on and grows up on the electrolytic mechanism in the conventional iron carbon, but with conventional iron carbon in electrolysis bed electrolysis in the high reactivity of essential distinction is arranged.In he and the conventional iron carbon electrolytic difference with in interior electrolytic system, added another kind of electrode substance; Increased the macroscopical number of batteries in the reaction system, improved different electric interpolar potential difference, electrolytic carrying out in having promoted; Improve organic removal efficient, be beneficial to follow-up biochemical treatment.Device adopts the high efficient aeration device simultaneously, has strengthened the mass transfer function of system, has further improved processing efficiency.
The implementation step of the present invention's technology:
(1) the high efficient aeration device is installed in interior electrolyzer;
(2) in interior electrolyzer, add electrode substance, this programme adopts rare earth as electrode substance, forms bed electrolysis in the high reactivity.Electrode substance and water ratio are 1: 3;
(3) the iron carbon dioxide process carbon electrode changes the iron copper electrode into;
(4) will handle wastewater pH and be adjusted into about 4, create reaction conditions;
Interior electrolysis treatment sewage mechanism:
Galvanic principles: the reaction of electrode reaction, electrode district, the coagulation of iron ion
Electrochemical action anode Fe → Fe++2e E0=-0.44V
Acid 2H++2e → 2CHI → H2 ↑ E0=0V
Cathodic acid oxygenation O2+4H++4e → 2H2O E0=-1.23V
Middle oxygenation O2+H2O+4e → 4OH-E0=0.4V
The reductive action of hydrogen: [H] of nascent state has bigger chemically reactive decolouring
The catalyzed internal electrocatalysis method is handled organic silicon wastewater and is had following characteristics:
(1) adopted novel in electrolysis filler, and unique filler profile structure makes the catalysis and micro-electrolysis reactor drum in long-time running, remain high reactivity, does not need often " activation ", operating mass is stable, reliable." scabbing " and " passivation " and the dead bed phenomenon of conventional iron bed have been solved.
(2) added the third electrode substance, made processing efficiency high, effective with catalysis characteristics.The highest clearance to CODcr in the organic silicon wastewater can reach about 50%, can improve the oxidable and biodegradability of sewage simultaneously, improves B/C ratio 0.2～0.4.
(3) complicated to composition, the organic cpds that bio-toxicity is high has well modified effect such as broken ring degraded.
(4) integrated equipment.Compact construction, convenient and flexible operation can be continuously or batch operation, and floor space is little, and it is low to consume energy, and is applicable to that the pH scope is wide.
The invention has the beneficial effects as follows; Removed a part of organism in the organic silicon wastewater, a lot of hardly degraded organic substance matter have been realized broken ring, chain rupture, eliminated or weakened its biological toxic; Improved the B/C ratio; Organic silicon wastewater is become by indegradable industrial effluent be prone to the degraded trade effluent, but realize organic silicon wastewater biochemical treatment fully, created strong condition for realizing qualified discharge.
Description of drawings
Accompanying drawing is interior battery synoptic diagram
Claims (3)
1. catalyzed internal electrocatalysis is handled organic silicon wastewater.
2. filler that catalyzed internal electrocatalysis is selected for use is a rare earth.
3. catalyzed internal electrocatalysis adopts high efficient aeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100238942A CN102336454A (en) | 2010-08-26 | 2011-01-21 | Application of catalyzed inner electrolysis method in organosilicone waste water treatment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020505629.9 | 2010-08-26 | ||
| CN201020505629 | 2010-08-26 | ||
| CN2011100238942A CN102336454A (en) | 2010-08-26 | 2011-01-21 | Application of catalyzed inner electrolysis method in organosilicone waste water treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102336454A true CN102336454A (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100238942A Pending CN102336454A (en) | 2010-08-26 | 2011-01-21 | Application of catalyzed inner electrolysis method in organosilicone waste water treatment |
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| CN (1) | CN102336454A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0287880A (en) * | 1988-09-26 | 1990-03-28 | Sony Corp | Forming of enclosure in television receiver |
| JPH0987880A (en) * | 1995-09-25 | 1997-03-31 | Matsushita Electric Ind Co Ltd | Electrochemical element and its production |
| CN1382649A (en) * | 2002-05-31 | 2002-12-04 | 上海城市污染控制工程研究中心 | Process for treating used water difficult to degradate by catalytic internal electrolysis of iron |
| KR20030091913A (en) * | 2003-11-15 | 2003-12-03 | 김동진 | Livestock wastewater treatment system for removal of T-N and chromatility attached a reverse osmosis membrane block and an electrolysis tank |
| CN1915846A (en) * | 2005-08-16 | 2007-02-21 | 同济大学 | Strengthened primary treatment method for internal electrolyzing sewage through aeration and catalyzing iron |
| JP3914775B2 (en) * | 2002-01-31 | 2007-05-16 | ペルメレック電極株式会社 | Nitrate nitrogen treatment method and catalyst and structure used therefor |
| CN101704565A (en) * | 2009-11-16 | 2010-05-12 | 同济大学 | Preparation method of iron-carbon micro-electrolytic filler |
-
2011
- 2011-01-21 CN CN2011100238942A patent/CN102336454A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0287880A (en) * | 1988-09-26 | 1990-03-28 | Sony Corp | Forming of enclosure in television receiver |
| JPH0987880A (en) * | 1995-09-25 | 1997-03-31 | Matsushita Electric Ind Co Ltd | Electrochemical element and its production |
| JP3914775B2 (en) * | 2002-01-31 | 2007-05-16 | ペルメレック電極株式会社 | Nitrate nitrogen treatment method and catalyst and structure used therefor |
| CN1382649A (en) * | 2002-05-31 | 2002-12-04 | 上海城市污染控制工程研究中心 | Process for treating used water difficult to degradate by catalytic internal electrolysis of iron |
| KR20030091913A (en) * | 2003-11-15 | 2003-12-03 | 김동진 | Livestock wastewater treatment system for removal of T-N and chromatility attached a reverse osmosis membrane block and an electrolysis tank |
| CN1915846A (en) * | 2005-08-16 | 2007-02-21 | 同济大学 | Strengthened primary treatment method for internal electrolyzing sewage through aeration and catalyzing iron |
| CN101704565A (en) * | 2009-11-16 | 2010-05-12 | 同济大学 | Preparation method of iron-carbon micro-electrolytic filler |
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Application publication date: 20120201 |